CVE-2022-28977 : Vulnerability Insights and Analysis

A detailed overview of CVE-2022-28977 highlighting the vulnerability in HtmlUtil.escapeRedirect in Liferay Portal and Liferay DXP versions.

Understanding CVE-2022-28977

This CVE involves a circumvention vulnerability in HtmlUtil.escapeRedirect in specific versions of Liferay Portal and Liferay DXP.

What is CVE-2022-28977?

The vulnerability in HtmlUtil.escapeRedirect in Liferay Portal versions 7.3.1 through 7.4.2, and Liferay DXP versions 7.0 fix pack 91 through 101, 7.1 fix pack 17 through 25, 7.2 fix pack 5 through 14, and 7.3 before service pack 3 can be exploited by using multiple forward slashes. This allows remote attackers to redirect users to arbitrary external URLs via certain parameters.

The Impact of CVE-2022-28977

Exploiting this vulnerability can lead to malicious remote attackers redirecting users to unintended and potentially dangerous external websites, compromising user security and privacy.

Technical Details of CVE-2022-28977

An in-depth look at the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

HtmlUtil.escapeRedirect in specified versions of Liferay Portal and Liferay DXP can be bypassed using multiple forward slashes, enabling remote attackers to redirect users to external URLs.

Affected Systems and Versions

Liferay Portal versions 7.3.1 through 7.4.2, and Liferay DXP versions 7.0 fix pack 91 through 101, 7.1 fix pack 17 through 25, 7.2 fix pack 5 through 14, and 7.3 before service pack 3 are impacted by this vulnerability.

Exploitation Mechanism

Remote attackers exploit the vulnerability by manipulating certain parameters that rely on HtmlUtil.escapeRedirect, such as the 'redirect' and 'FORWARD_URL' parameters.

Mitigation and Prevention

Important steps to mitigate the risks posed by CVE-2022-28977 and secure affected systems.

Immediate Steps to Take

Update Liferay Portal and Liferay DXP to the latest patched versions to address the vulnerability.
Implement web application firewalls to filter and monitor incoming traffic for malicious redirection attempts.

Long-Term Security Practices

Regularly monitor security advisories and apply security patches promptly.
Conduct security assessments and code reviews to identify and remediate vulnerabilities proactively.

Patching and Updates

Stay informed about security updates released by Liferay for Liferay Portal and Liferay DXP to address known vulnerabilities.